|Topic Review (Newest First)|
|11-01-2019 07:30 AM|
Yes I am dated - I still have a point file. In my posts I often use old terms, names for parts (ALDL) - what can one say training and years.
A s far as not seeing code before - have you had that scanner on jeep before-
A TSB is not a freebie warranty concerns are often posted in the fine print last paragraph of TSB - did you see a copy?
you will want to look at o2 sensors esp the B1S2* that is post cat and compare to pre cat.
* this is the reference in TSB - SO is it behaving as TSB alluded to?
Also look at freeze frame for that code,
Will pick up on the post later - mean time ck for exhaust leaks.
any exhaust leak.
|10-31-2019 03:28 PM|
Thanks for the response! Yes it is P013A on my fancy new scanner & P0130 on my old one (I still use it because it reads faster LOL). By GIGO do you mean Garbage in/out? You are dating yourself my friend! LOL
Just Google'd that TSB, a PCM reprogram... that's odd, never had this code before changing the sensors. I assume this is a dealer only job? Is it something that should be free since there's a TSB on it?
|10-31-2019 01:02 PM|
need to address sensors issues before CAT code. GIGO
Are you sure the code is not P013A ? referance TSB - # 18-010-10 REV. A
Yes left side (driver) is B1.
|10-30-2019 03:04 PM|
Well the weather and my schedule have finally provided an opportunity for me to tackle this again. I've replaced Bank-1 Sensor-2 with a brand spanking new NTK CARB compliant O2 sensor. Just to confirm, Bank1 is driver's side right? I'm getting P0420 & P0130A codes now... photos attached.
|10-01-2019 04:27 PM|
Is it possible I received a bad O2 sensor right out of the gate? How likely or unlikely is that? I think I will try swapping the O2 sensors on Bank 1/2 sensor 2 and see if the DTC switches to the other bank. Is that a logical troubleshooting step?
|10-01-2019 04:23 PM|
with scanner look at freeze frame - and then look at o2 sensor voltages - compare B1S2 to B2 S2 see if they are stuck rich... not sweaping back and forth.. suspecting the 1/2 is fixed with little sweep and -
reading the trouble tree , none of the other causes applied - thats why I asked with no issue before anti foulers used, and be sure to check o2 connector for damage- bent pins ect. and a foot note about contaminated o2 sensors and sealant which seamed likely to apply.
|10-01-2019 04:17 PM|
Just so I can learn, which elements on the read out lead you to this conclusion?
|10-01-2019 03:27 PM|
P2271-O2 SENSOR 1/2 SIGNAL STUCK RICH
you did remove the anti foulers? recheck the plug in connector at o2 sensor. If there was no issue before the anti foul adventure - I would now suspect the o2 sensor is bad.
|10-01-2019 02:47 PM|
No more cat related codes (P0420/0430) and the only code that keeps popping back up is P2271 Bank 1 Sensor 2 Rich. Finally got my new scan tool. Here are the screens, I have no idea what this data means!
Load Pct: 85.1
MAP (inHg): 24.8
RPM (/min): 1785
VSS (mph): 60
IAT: 66 oF
RUNTM (sec): 408
BARO (inHg): 29.6
VPWR (V): 14.252
AAT: 64 oF
Thanks in advance!!
|09-18-2019 10:37 AM|
|09-18-2019 09:22 AM|
the voltages pre and post cat are needed to work this code.
Ideally the pre and post voltages are graphed and stacked for comparison.
My thinking if the pre cat are HIGH the post cats might not show improvement ...
With the sensor plugged it COULD not show a acceptable voltage sweep,
Also silicone is a sensor killer.
|09-17-2019 02:21 PM|
Just to clarify, all four sensors are brand-new NTK CA Emissions sensors from Rockauto. Only the 2 downstream sensors have the no-foulers installed, 1/1 & 2/1 are straight to the pipe, so should be reporting correct data to the PCM.
|09-17-2019 02:04 PM|
|09-17-2019 01:12 PM|
first lets remove the anti foulers- Smack whoever suggested that idea.
With the sensors installed correctly, you tried to clear code with scanner? It Would not clear correct?
I would drive a drive cycle and see if the 2 post fouler codes clear before we go on, I am thinking the Einstein idea might have caused the new codes, the sensors not shifting at all.
With your scanner lets give a quick look at ECT, Fuel trims, and o2 sensor voltages. Want to see if anything upstream is out of spec and cat cannot clean the mix up.
Might try getting a long drive seeing if heat will clean up any cat issue from over rich caused by additives, as we check on new post cat codes (P22xx) and check upstream readings....
|09-17-2019 11:21 AM|
Originally Posted by Armor_LG View Post
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